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authorOlof Johansson <olof@lixom.net>2011-01-02 03:37:32 +0300
committerChris Ball <cjb@laptop.org>2011-01-09 07:52:23 +0300
commit30652aa36b58d57fcc1a0acce51e391bbb6edf5e (patch)
tree80743c840e0456381b4e1aea223661eb694a976e /include/linux/mmc/sdhci.h
parentc288b85554097a3d1271f935c48b442280b2db9e (diff)
downloadlinux-30652aa36b58d57fcc1a0acce51e391bbb6edf5e.tar.xz
mmc: sdhci: add quirk for max len ADMA descriptors
Some controllers misparse segment length 0 as being 0, not 65536. Add a quirk to deal with it. Signed-off-by: Olof Johansson <olof@lixom.net> Reviewed-by: Chris Ball <cjb@laptop.org> Signed-off-by: Chris Ball <cjb@laptop.org>
Diffstat (limited to 'include/linux/mmc/sdhci.h')
-rw-r--r--include/linux/mmc/sdhci.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/mmc/sdhci.h b/include/linux/mmc/sdhci.h
index 0d953f513d81..83bd9f76709a 100644
--- a/include/linux/mmc/sdhci.h
+++ b/include/linux/mmc/sdhci.h
@@ -83,6 +83,8 @@ struct sdhci_host {
#define SDHCI_QUIRK_MULTIBLOCK_READ_ACMD12 (1<<28)
/* Controller doesn't have HISPD bit field in HI-SPEED SD card */
#define SDHCI_QUIRK_NO_HISPD_BIT (1<<29)
+/* Controller treats ADMA descriptors with length 0000h incorrectly */
+#define SDHCI_QUIRK_BROKEN_ADMA_ZEROLEN_DESC (1<<30)
int irq; /* Device IRQ */
void __iomem *ioaddr; /* Mapped address */